Tablespoons to Teaspoons

1 tbsp = 3 tsp

When a tablespoon measure is missing or a recipe needs to be cut down, converting tablespoons to teaspoons keeps quantities accurate. It is a common step when halving or quartering a recipe and the result no longer fits a whole tablespoon.

From

When you need to convert tablespoons to teaspoons

Halving a recipe that calls for an odd number of tablespoons
Measuring spices when only teaspoon measures are clean or available
Scaling a spice blend down to a single serving
Splitting a seasoning amount evenly between several dishes

How to convert tablespoons to teaspoons

tsp = tbsp × 3

Example: 5 tbsp = 15 tsp

Typical tablespoon amounts

Tablespoons (tbsp)	Teaspoons (tsp)
0.25 tbsp	0.75 tsp
0.5 tbsp	1.5 tsp
1 tbsp	3 tsp
1.5 tbsp	4.5 tsp
2 tbsp	6 tsp
3 tbsp	9 tsp
4 tbsp	12 tsp

Tips for converting tablespoons to teaspoons

One tablespoon is exactly 3 teaspoons in US measures, so simply multiply by 3.
Half a tablespoon is 1.5 teaspoons, which is easier to measure as one teaspoon plus a half teaspoon.
Australian tablespoons hold 4 teaspoons, so check where a recipe comes from before converting.

Tablespoons to Teaspoons conversion table

Tablespoons (tbsp)	Teaspoons (tsp)
1 tbsp	3 tsp
2 tbsp	6 tsp
3 tbsp	9 tsp
4 tbsp	12 tsp
5 tbsp	15 tsp
6 tbsp	18 tsp
7 tbsp	21 tsp
8 tbsp	24 tsp
9 tbsp	27 tsp
10 tbsp	30 tsp
15 tbsp	45 tsp
20 tbsp	60 tsp
25 tbsp	75 tsp
30 tbsp	90 tsp
40 tbsp	120 tsp
50 tbsp	150 tsp
75 tbsp	225 tsp
100 tbsp	300 tsp
250 tbsp	750 tsp
500 tbsp	1,500 tsp
1,000 tbsp	3,000 tsp

About the units

Tablespoons: The US tablespoon equals 1/2 US fluid ounce, about 14.79 milliliters, or 3 teaspoons.

Teaspoons: The US teaspoon equals 1/3 of a tablespoon, about 4.93 milliliters.

Frequently asked questions

How many teaspoons are in 1 tablespoon?

1 tablespoon equals 3 teaspoons.

How many tablespoons are in 1 teaspoon?

1 teaspoon equals 0.3333333 tablespoons.

How do I convert tablespoons to teaspoons?

Use the formula tsp = tbsp × 3.

What is 10 tablespoons in teaspoons?

10 tablespoons equals 30 teaspoons.

Related conversions

Sources

Conversion factors use the exact definitions published by NIST and the BIPM, and are checked by automated tests against those definitions.

Last updated: October 17, 2026